Perfect metamaterial absorber
Perfect metamaterial absorber
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DOI：
10.1103/physrevlett.100.207402
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发表时间：
2008-05-23
影响因子：
8.6
通讯作者：
Padilla, W. J.
中科院分区：
文献类型：
--
作者：
Landy, N. I.;Sajuyigbe, S.;Padilla, W. J.
我们提出了吸收率A（欧米茄）接近1的吸收超材料（MM）的设计。我们的结构由两个MM谐振器组成，它们分别耦合到电场和磁场，以便吸收单个单元电池层内的所有入射辐射。我们制造，表征和分析MM吸收体，预测A（Ω）略低96%。与传统的吸收体不同，我们的MM仅由金属元素组成。因此，可以针对其他感兴趣的参数来优化衬底。我们的实验表明，在11.5 GHz的峰值A（Ω）大于88%。
We present the design for an absorbing metamaterial (MM) with near unity absorbance A(omega). Our structure consists of two MM resonators that couple separately to electric and magnetic fields so as to absorb all incident radiation within a single unit cell layer. We fabricate, characterize, and analyze a MM absorber with a slightly lower predicted A(omega) of 96%. Unlike conventional absorbers, our MM consists solely of metallic elements. The substrate can therefore be optimized for other parameters of interest. We experimentally demonstrate a peak A(omega) greater than 88% at 11.5 GHz.